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This eBook from the Gutenberg Project consists of approximately 216 pages of information about The Divine Office.

7.  The use of the old order of Psalms found in the Roman Breviary is abolished and interdicted from 1st January, 1913, and the use of the new Psalter for all clergy, secular and regular, who used the Roman Breviary as revised by Pius V., Clement VIII., Urban VIII., and Leo XIII., and those who continue to use the old order do not satisfy their obligation.

8.  Ecclesiastical superiors are to introduce the new order of the Psalter, and chapters are permitted to use it if the majority of the members agree to its introduction.

9.  Establishment and declaration of the validity and efficacy of the Bull, notwithstanding all previous apostolic constitutions and rulings, whether general or particular.  Any person infringing these papal abolitions, revocations, etc., sins and merits God’s anger.

10.  Date and place of promulgation.

SECTION II.

THE YEAR AND ITS PARTS.

The Council of Trent, Sess.  XXIII., c. 18, orders “ut in disciplina ecclesiastica clerici commodius instituantur grammaticas, cantus, computi ecclesiastici, aliarumque bonarum artium disciplinam discant.”  The minute study of the ecclesiastical calendar is not now so necessary for each priest, as it was centuries ago.  The Ordo Divini Officii recitandi, issued yearly, and prepared with great accuracy, relieves priests of much labour and secures them from many doubts.  And the decision of the Congregation of Rites (13th January, 1899) regarding the authority of the ordo gives greater security. “Qui probabilius judicat errare Calendarium tenetur eidem Calend. stare, nec potest proprio inhaerere judicio quoad officium, Missam vel colorem Paramentorum.” Of course this decision does not apply to errors which are openly and plainly at variance with the rubrics of the Missal and Breviary.  However, it may be well to revise and to recall the student days’ lessons on the Church’s Calendar.  The study is not an easy one, and in labouring to be brief, probably, I may be obscure and incomplete.

Annus menses habet duodecim...” says the Breviary.  The year has twelve months, fifty-two weeks plus one day, or 365 days and almost six hours.  But these six hours make up a day every four years, and this fourth year is called bisextile.

In making calculations the six hours were taken as six complete hours, and not six hours wanting some minutes.  And the aggregate miscalculation continued until the minutes added yearly, amounted to ten days and changed the date of the spring equinox.  Pope Gregory XIII. (1572-1585) sought to remedy the error.  He re-established the spring equinox to the place fixed by the Council of Nice (787).  The year had fallen ten days in arrear from the holding of the Council until the year of the Gregorian correction, 1582.  He again fixed it to the day arranged by the Council, the 14th of the Paschal moon.  And he arranged, that such a time-derangement should not occur again.  He omitted ten full days in October, 1582, so that the fourth day of the month was followed immediately by the fifteenth.  He determined that the secular year must begin on 1st January, that three leap years should be omitted in every four centuries, e.g., 1700, 1800, 1900, 2100, and his arrangement has been observed throughout nearly the whole world.

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